RFR: 8253926: Use extra_size correctly in anon_mmap_aligned
Stefan Johansson
sjohanss at openjdk.java.net
Fri Oct 2 10:18:42 UTC 2020
A recent cleanup ([8253638: Cleanup os::reserve_memory and remove MAP_FIXED](https://github.com/openjdk/jdk/pull/357/))
got a size mixed up in `anon_mmap_aligned()`. Instead of passing down the calculated `extra_size` to `anon_mmap()` it
uses the original size `bytes`.
This resulted in an early crash when using large pages and with this fix the crash goes away.
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Commit messages:
- 8253926: Use extra_size correctly in anon_mmap_aligned
Changes: https://git.openjdk.java.net/jdk/pull/479/files
Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=479&range=00
Issue: https://bugs.openjdk.java.net/browse/JDK-8253926
Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
Patch: https://git.openjdk.java.net/jdk/pull/479.diff
Fetch: git fetch https://git.openjdk.java.net/jdk pull/479/head:pull/479
PR: https://git.openjdk.java.net/jdk/pull/479
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